​The intelligence committee of the United States Senate has released its long-awaited congressional report detailing the CIA’s use of torture on prisoners in the wake of the September 11, 2001 terrorist attacks.

On Tuesday, the executive summary of the roughly 6,000-page report was finally published by the Senate Intelligence Committee, for the first time exposing the panel’s findings following a four-year-long investigation conducted at a cost of more than $40 million.

“There may never be the right time to release this report,” Sen. Dianne Feinstein (D-California), the committee’s chair, said on the Senate floor early Tuesday concurrent with the release of the executive summary. “The instability we see today will not be resolved in months or years. But this report is too important to shelf indefinitely.”